Portable data storage device



FIG. 1 is a front perspective view of the portable data storage device showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front perspective view showing the portable data storage device in an open position.

The broken lines in the figures represent portions of the article which form no part of the claim. 

CLAIM I claim the ornamental design for a portable data storage device, as shown and described. 